Ceramics International最新文献

{"title":"Polyetherimide copolymer film with room-temperature self-healing properties and high breakdown field strength","authors":"Zeyu Ning,&nbsp;Zhuo Wang,&nbsp;Ting Zhao,&nbsp;Ronghui Ye,&nbsp;Jinteng Kang,&nbsp;Zhuang Liu,&nbsp;JiaoJiao Wang","doi":"10.1016/j.ceramint.2024.10.252","DOIUrl":"10.1016/j.ceramint.2024.10.252","url":null,"abstract":"<div><div>With the waste of resources caused by human activities, it has gradually become an increasingly prominent social problem. The development of self-healing polymers in the field of insulation has attracted widespread attention. Develop polymer matrices with efficient healing efficiency and sound insulation properties to achieve green and sustainable resource conservation. In addition, improving the dielectric properties of intrinsic self-healing matrices has been a hot topic. In this work, we developed a new PEI matrix-modified self-healing polymer substrate that provides a breakdown field strength of 240 kV/mm and self-healing properties at room temperature, this has significantly improved the dielectric properties over other previously reported self-healing polymers. In addition to the abovementioned performance, we found significant differences in thermodynamic behavior in the synthesized end-modified polymers. By dielectric characterization (LCR), the breakdown composite can be left at room temperature for 60 min, and the material can recover 80 % of the initial properties without external intervention(This is demonstrated by the fact that its DC conductivity at 60 min of autonomous healing was significantly changed from that of the freshly electrically pierced DC conductivity and remained around 5.38 × 10⁻¹¹ S/cm for a longer period of time thereafter). The microscopic morphology of the modified PEI matrix was observed by scanning electron microscopy (SEM) and EDS surface elemental analysis, which further supports the existence of metal coordination structures. These findings can further deepen the thinking of self-healing dielectric composites. The work inspired by this may break the limits and take self-healing composite dielectric materials to a new height.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 23","pages":"Pages 52152-52157"},"PeriodicalIF":5.1,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-efficiency 1.6 μm-band fiber laser based on single Er3+-doped tungsten tellurite glass with high mechanical strength through tailored glass network","authors":"Lulu Xu ,&nbsp;Yuzhou Pan ,&nbsp;Guanghui Wang ,&nbsp;Fajian He ,&nbsp;Shixun Dai","doi":"10.1016/j.ceramint.2024.09.225","DOIUrl":"10.1016/j.ceramint.2024.09.225","url":null,"abstract":"<div><div>In this study, the correlation between the Raman structure, thermal stability, and mechanical properties of TeO₂-ZnO-La₂O₃–WO₃ glasses with varying WO₃ contents are systematically established. By exploring the critical point in the transformation process of glass network structural units, the optimal glass components of 74TeO₂-12ZnO-5La₂O₃–9WO₃ glass possess the maximum thermal stability (158 °C) and the highest mechanical properties at the same time. The maximum Vicker hardness and Young's modulus of the optimal glass can reach up to 4.007 GPa and 56.212 GPa, which are higher than those of the well-known TeO₂-ZnO-Na₂O (TZN) and TeO₂-ZnO-La₂O₃ (TZL) glasses. Furthermore, the 0.5 mol% Er³⁺-doped glass at this critical point (TZLW-0.5Er) exhibits a higher laser figure of merit (54.29 × 10⁻²¹ cm² ms), a larger laser gain bandwidth value (116 nm) and higher emission cross-sections at 1600 nm (2.52 × 10⁻²¹ cm²) and 1625 nm (1.06 × 10⁻²¹ cm²) than other host glasses. Finally, high-efficiency laser outputs at 1600 and 1625 nm based on TZLW-0.5Er glass fiber are successfully achieved by simulation. These results show the greater practical potential of TZLW-0.5Er glass with higher mechanical strength compared to TZN and TZL fibers for the 1.6 μm-band laser.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 23","pages":"Pages 48977-48987"},"PeriodicalIF":5.1,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of epoxy resin addition on the acoustic impedance, microstructure, dielectric and piezoelectric properties of 1–3 connectivity lead-free barium zirconate titanate ceramic cement-based composites","authors":"Thanyapon Wittinanon ,&nbsp;Rattiyakorn Rianyoi ,&nbsp;Ruamporn Potong ,&nbsp;Arnon Chaipanich","doi":"10.1016/j.ceramint.2024.10.251","DOIUrl":"10.1016/j.ceramint.2024.10.251","url":null,"abstract":"<div><div>In this work, 1–3 connectivity barium zirconate titanate ceramic cement-based composites were fabricated using Portland cement and epoxy resin as the matrix. Barium zirconate titanate (BZT) of 40–60 % by volume was used while epoxy was used with cement at 0–7% by volume. Dielectric and piezoelectric properties, and other properties such as acoustic impedance, density and microstructure were investigated. It was found that epoxy resin can be used in combination with BZT to achieve a suitable acoustic impedance value (9–11 × 10⁶ kg/m·s²) matching that of concrete for structural health monitoring application. Thus, when epoxy resin was used at 7 %, BZT volume can be increased to 60 % where the highest d₃₃ value of 93 pC/N was found and remain within the acoustic matching range. In addition, when epoxy resin was increased, both piezoelectric charge coefficient (d₃₃) and piezoelectric voltage coefficient (g₃₃) were also found to increase. This is likely due to the lower porosity thus denser matrix when epoxy resin was used in addition to cement.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 23","pages":"Pages 52144-52151"},"PeriodicalIF":5.1,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improvement of energy storage properties of BNT-based ceramics via compositional modification","authors":"Yangxi Yan ,&nbsp;Jiejie Hui ,&nbsp;Xiaoying Wang ,&nbsp;Dongyan Zhang ,&nbsp;Maolin Zhang ,&nbsp;Mo Zhao ,&nbsp;Meng Wan ,&nbsp;Li Jin ,&nbsp;Zhimin Li","doi":"10.1016/j.ceramint.2024.09.361","DOIUrl":"10.1016/j.ceramint.2024.09.361","url":null,"abstract":"<div><div>Lead-free ceramic capacitors are extensively utilized in pulsed power systems for their environmentally friendly characteristics, high power density, and fast charging/discharging rate. However, it remains highly challenging to achieve concurrent improvements in both recoverable energy storage density (<em>W</em>_rec) and efficiency (<em>η</em>). In this study, Ta₂O₅ with a wide bandgap (∼4 eV) was chosen in complex with Mg²⁺ ions to form Ba(Mg_1/3Ta_2/3)O₃ as the second phase of a BNT-based solid solution. Combined with phase modulation, a compositional disorder of equipotential sites is formed in chalcogenide crystals, which in turn induces charge disorder generating localized random fields. We have designed and prepared a set of binary (1-x)Bi_0.5Na_0.5TiO₃-xBa(Mg_1/3Ta_2/3)O₃ (BNT-xBMT) ceramics using a conventional solid-phase method. An ultra-high breakdown field strength (E_b) value (245 kV/cm) was attained in 0.80BNT-0.20BMT ceramic, resulting in desirable values of <em>W</em>_rec (3.99 J/cm³) and <em>η</em> (92.0 %). These results offer a new strategy for designing high entropy ceramic materials of high performance in the future.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 23","pages":"Pages 48918-48930"},"PeriodicalIF":5.1,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of mechanical alloying methods on structural phase stability, chemical state, optical, electrical and ferroelectric properties in Sc-doped α-Fe2O3 system","authors":"Bipin Kumar Parida ,&nbsp;R.N. Bhowmik ,&nbsp;Amit Kumar","doi":"10.1016/j.ceramint.2024.09.317","DOIUrl":"10.1016/j.ceramint.2024.09.317","url":null,"abstract":"<div><div>The development of metal doped α-Fe₂O₃ (hematite) based wide band gap semiconductors with high electrical conductivity, high electrical polarization and wide optical band gap is a challenging problem and also useful for application point of view. In this work, a substantial enhancement of electrical conductivity, optical band gap and ferroelectric polarization have been recorded at room temperature for Sc doped α-Fe₂O₃ system. Two different methods of the mechanical alloying and subsequent heat treatment have been used to synthesize the samples of α-Fe_2-xSc_xO₃ oxide (x = 0.2–1.0). The X-ray diffraction patterns have confirmed formation of single-phased Rhombohedral structure for low Sc doping content (x = 0.2), whereas a mixture of Rhombohedral-structured α-Fe₂O₃ type phase and cubic-structured Sc₂O₃ type phase has been formed for the higher Sc contents (x = 0.5 and 1.0). The phase fractions varied depending on the amount of Sc content, chemical reaction during mechanical alloying of the elementary oxides and solid-state reaction during the heat treatment. Response of the Sc₂O₃ type phase in Raman spectra is sensitive depending on the methods of inter-mixing the α-Fe₂O₃ and Sc₂O₃ by mechanical alloying. X-ray photoelectron spectroscopy (XPS) confirmed the metal (Fe, Sc) ions in +3 charge state, although the samples for low Sc content x = 0.2 showed a signature of Fe⁺² and Sc⁺⁴ states. A detailed analysis of the Fe 3s XPS band confirmed a strong 3s-3d spins exchange coupling of strengths 1.18 eV–1.34 eV.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 23","pages":"Pages 49732-49747"},"PeriodicalIF":5.1,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antimicrobial studies of visible light-responsive nanoflower spheres Bi2WO6/ZnO","authors":"Luyin Zhao ,&nbsp;Jingmei Li ,&nbsp;Jiayun Shao ,&nbsp;Ling Zhang ,&nbsp;Yuhao Ji ,&nbsp;Xiulong Li ,&nbsp;Dianmin Ju","doi":"10.1016/j.ceramint.2024.09.207","DOIUrl":"10.1016/j.ceramint.2024.09.207","url":null,"abstract":"<div><div>The contamination of water resources in recent years has resulted in the dissemination of harmful bacteria via water sources, posing a significant threat to the safety and well-being of humans, animals, and plants. Consequently, there is a growing concern over the health and sanitation of water resources. Photocatalysis, a novel and very effective antibacterial method, has gained significant attention in the area of antibacterial research. Bismuth nitrate pentahydrate and sodium tungstate dihydrate were used in a straightforward hydrothermal process to create nanoflower spheres Bi₂WO₆/ZnO photocatalytic composites in molar ratios of 1:1, 1:2, 1:3, and 1:4. The first-ever demonstration of the photocatalytic broad-spectrum antibacterial activity of porous nanoflower spheres Bi₂WO₆/ZnO composites was shown. The samples were analyzed using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), and ultraviolet–visible spectroscopy (UV–vis). The antibacterial activity was evaluated using the dilution coated plate technique, with LED light irradiation. The findings indicate that the Bi₂WO₆/ZnO composite has a much superior antibacterial activity against both bacteria and fungus compared to individual Bi₂WO₆ and ZnO. When exposed to LED lighting with an intensity of 35 W, the Bi₂WO₆/ZnO nanoparticles in a 1:2 ratio at a concentration of 1000 mg/L demonstrated complete antibacterial effectiveness against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Bacillus subtilis within 30 min. Similarly, the nanoparticles achieved 100 % antibacterial efficiency against Candida albicans within 90 min. The antibacterial efficacy of 1000 mg/L 1:2 Bi₂WO₆/ZnO nanoparticles against Escherichia coli and Staphylococcus aureus was found to be 100 % within 5 min under natural lighting conditions. The findings indicate that Bi₂WO₆/ZnO nanoparticles have excellent photocatalytic broad-spectrum antibacterial efficacy.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 23","pages":"Pages 48948-48966"},"PeriodicalIF":5.1,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving the durability and investing failure behavior of TBCs under thermal cycling-CMAS test by Yb2O3 and Y2O3 co-stabilized ZrO2 materials and different processes","authors":"Yangguang Liu ,&nbsp;Wenkang Zhang ,&nbsp;Weize Wang ,&nbsp;Wei Liu ,&nbsp;Ting Yang ,&nbsp;Kaibin Li ,&nbsp;Xiaoqin Zhang ,&nbsp;Junhao Wang ,&nbsp;Xiaofeng Zhao ,&nbsp;Lirong Luo ,&nbsp;Jin Yang ,&nbsp;Chengcheng Zhang","doi":"10.1016/j.ceramint.2024.09.250","DOIUrl":"10.1016/j.ceramint.2024.09.250","url":null,"abstract":"<div><div>Under extremely complex conditions, extending the lifetime of thermal barrier coatings (TBCs) is a challenge. In the present study, optimization of the coating structure and selection of coating materials are beneficial for improving the lifetime of TBCs under thermal cycling-CMAS (calcium-magnesium-alumina-silicate) test. It is efficient to obtain different layer thicknesses of multi-layer coating, including the micro-nano dual-scale layer, the dense YbYSZ layer (4.0 mol % Yb₂O₃ and 0.5 mol% Y₂O₃ co-stabilized ZrO₂), the porous YbYSZ layer and the laser 3D texturing layer, using the computational model under thermal load. Based on the corresponding coating structure and YbYSZ material, bond strength and thermal cycling-CMAS lifetime are evaluated, and compared with those of YSZ (4.5 mol % Y₂O₃ stabilized ZrO₂) coating. The results reveal that TBCs with porous embedded particle cluster (PEPC) structure is lower than that of YSZ coating. In addition, the original defects in multi-layer coating with grid texture reduce the bond strength. The lifetime of multi-layer coatings with a punctate texture are significantly improved in the thermal cycling-CMAS test, and their failure behavior includes fragmented and bulk-like exfoliation. This study emphasizes that combination of materials modification and structure optimization are a promising strategy to extend lifetime of TBCs.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 23","pages":"Pages 49095-49111"},"PeriodicalIF":5.1,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of binder–free Ni3S2/CoS2 nano–composite as electrode material for energy storage application","authors":"Nigarish Bano ,&nbsp;Syed Imran Abbas Shah ,&nbsp;Abdus Sami ,&nbsp;Muhammad Ali ,&nbsp;Razan A. Alshgari ,&nbsp;Saikh Mohammad ,&nbsp;Muhammad Shuaib Khan ,&nbsp;Muhammad Faheem Ashiq","doi":"10.1016/j.ceramint.2024.09.332","DOIUrl":"10.1016/j.ceramint.2024.09.332","url":null,"abstract":"<div><div>Global energy crisis imposes immense obstacles leading towards development of innovative devices, and supercapacitors (SCs) are thought to be a viable energy storage technology. The engineering of nanostructured materials with a distinct and consistent morphological design is seen as a better option for various range of electrochemical energy sources. This study reports novel binder-free Ni₃S₂/CoS₂ electrode material that acquires higher energy, higher energy density, as well as its simple preparation method, low cost, and earth–abundant resources. The morphological, structural, and textural characteristics resulted in surface area of 46 m² g⁻¹ of Ni₃S₂/CoS₂ that will increase active sites also. The synthesized nanocomposite has particle size of 41.1 nm that leads to enhanced active sites and greater surface area as confirmed through BET analysis. Ni₃S₂/CoS₂ nanocomposite has high specific capacity around 828.14 F g⁻¹ at 5 mV s⁻¹ sweep rate using 2 M KOH, a high energy density around 115.01 Wh kg⁻¹, and power density of 1000 Wh kg⁻¹. Ni₃S₂/CoS₂ acquires higher ionic conductivity of 5 S m⁻¹, this will enhance the inter-layer transference of electrons, and these results perfectly correlates with EIS, resulting in charge transfer resistance value of 0.9 Ω for nano-composite. These enhanced electrochemical capabilities of Ni₃S₂/CoS₂ hold significant potential in practical viability.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 23","pages":"Pages 49880-49888"},"PeriodicalIF":5.1,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of CeO2 on the preparation of functional ceramsite and the adsorption effect of ammonia-nitrogen wastewater treatment","authors":"Wenxian Hu ,&nbsp;Yifan Chai ,&nbsp;Peijun Liu ,&nbsp;Shengli An ,&nbsp;Jun Peng","doi":"10.1016/j.ceramint.2024.09.315","DOIUrl":"10.1016/j.ceramint.2024.09.315","url":null,"abstract":"<div><div>This study investigates the effect of rare earth oxide CeO₂ on the physical properties of ceramsite and its efficiency in treating ammonia-nitrogen wastewater. Ceramsite was prepared from solid waste with 10 % coal gangue added as a pore-forming agent. Ceramsite sample I with CeO₂ and sample II without CeO₂ were prepared using pure reagents. The process parameters for both samples were optimized using an orthogonal test. Additionally, the effects of CeO₂ on ceramsite performance and the treatment of ammonia-nitrogen wastewater were studied, and the adsorption mechanism of CeO₂ on ammonia-nitrogen wastewater was clarified. The process parameters for preparing ceramsite sample Ⅰ were: preheating for 30 min at 600 °C, followed by roasting for 20 min at 1090 °C. The parameters for preparing ceramsite sample Ⅱ were: preheating for 30 min at 600 °C, followed by roasting time for 15 min at 1090 °C. The presence of CeO₂ increased the porosity of the ceramsite by 0.89 % and the specific surface area by 0.66 m²/g. Under neutral environmental conditions of water samples, CeO₂ increased the removal rate of ammonia nitrogen by 1.85 %. Ceramsite has a high porosity and specific surface area, indicating that it has abundant internal pores, a large contact area with ammonia-nitrogen, a strong ability to remove ammonia nitrogen, and resistance to erosion and water flow shear, which are conducive to the treatment of ammonia-nitrogen wastewater.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 23","pages":"Pages 49712-49723"},"PeriodicalIF":5.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In-situ growth of CuO nanorods on sensing electrodes and their gas sensing properties of VOCs","authors":"Xiangxiang Chen ,&nbsp;Shiyi Huang ,&nbsp;Zhaoyang Zhang ,&nbsp;Lu Qiu ,&nbsp;Fangzheng Liu ,&nbsp;Tianhao Liu ,&nbsp;Yunfei Ouyang ,&nbsp;Yanbai Shen","doi":"10.1016/j.ceramint.2024.09.336","DOIUrl":"10.1016/j.ceramint.2024.09.336","url":null,"abstract":"<div><div>The CuO nanorods were in-situ grown on sensing electrodes by a chemical bath method for the detection of volatile organic compounds (VOCs). The synthesized material was characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and Fourier-transform infrared spectroscopy (FTIR). The CuO nanorods, with lengths of 100–150 nm and diameters of 35–55 nm, were uniformly formed into a thin film on the electrode surface, with a thickness of approximately 1 μm. The gas test results demonstrated that the sensor achieved a peak response of 1.32 for formaldehyde at 200 °C, and a response of 1.92 for ethanol at 175 °C. At a concentration of 50 ppm, ethanol and formaldehyde at an operating temperature of 200 °C exhibit short response/recovery times of 28 s/48 s for ethanol and 45 s/62 s for methanol, respectively, coupled with good reproducibility. Moreover, the sensor exhibited a power-law response to varying gas concentrations and showcased superior selectivity in the VOCs gas detection. This in-situ growing CuO of our work provides a facial gas sensing material fabricated method.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 23","pages":"Pages 49915-49922"},"PeriodicalIF":5.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}